kaaaaaaang

update doc about tiup user

5

### First-time contributors' checklist - [ ] I've signed [**Contributor License Agreement**](https://cla-assistant.io/pingcap/docs) that's required for repo owners to accept my contribution. ### What is changed, added or deleted? (Required) ###...

hide outdated component versions or other ways to prevent user use outdated tiup-cluster

2

## Feature Request **Is your feature request related to a problem? Please describe:** **Describe the feature you'd like:** **Why the featue is needed:** **Describe alternatives you've considered:** **Teachability, Documentation, Adoption,...

## Bug Report Please answer these questions before submitting your issue. Thanks! 1. What did you do? 2. What did you expect to see? 3. What did you see instead?...

## Feature Request **Is your feature request related to a problem? Please describe:** Now, this feature helps users automatically set some system parameters to the correct values. However, some parameter...

## Feature Request **Is your feature request related to a problem? Please describe:** **Describe the feature you'd like:** **Why the featue is needed:** **Describe alternatives you've considered:** **Teachability, Documentation, Adoption,...

## Bug Report Please answer these questions before submitting your issue. Thanks! 1. What did you do?  2. What did you expect to see? 3. What did you see...

## Bug Report Please answer these questions before submitting your issue. Thanks! 1. What did you do? 2. What did you expect to see? 3. What did you see instead?...

## Feature Request **Is your feature request related to a problem? Please describe:** **Describe the feature you'd like:** **Why the featue is needed:** **Describe alternatives you've considered:** **Teachability, Documentation, Adoption,...

## Feature Request **Is your feature request related to a problem? Please describe:** **Describe the feature you'd like:** **Why the featue is needed:** **Describe alternatives you've considered:** **Teachability, Documentation, Adoption,...

## Feature Request **Is your feature request related to a problem? Please describe:** **Describe the feature you'd like:** **Why the featue is needed:** **Describe alternatives you've considered:** **Teachability, Documentation, Adoption,...